Call libgui's SurfaceControl directly in hwui

HWUI is no longer pursuing becoming a mainline module, so this is not
needed. Moreover, dlopening ASurfaceControl symbols hits an internal
lock, which makes this code susceptible to lock contention during app
startup.

Bug: 374342597
Flag: EXEMPT refactor
Test: builds, boots
Test: gmail
Change-Id: I56ac9220dc669b8ca7c83a07268b910576aa96e5